Mischief of the Yokai [STBL-EN089] Ultimate Rare RC1 "Fortress Whale's Oath"

"Fortress Whale's Oath"

Set: Sun & Moon: Detective Pikachu Type: Colorless Rarity: Holo Rare Retreat cost: Colorless

The original ATK and DEF of this card become the number of Fusion Material Monsters you used for the Fusion Summon of this card x 800 points

Set: Wizards of the Coast: Black Star Promos Type: Fire Rarity: Black Star Promo Retreat cost: Colorless

Mischief of the Yokai [STBL-EN089] Ultimate Rare RC1 "Fortress Whale's Oath"Set: Starstrike Blast Card type: Normal Trap Rarity: Ultimate Rare Each face up monster on the field loses 2 Levels, until the End Phase. You can remove from play this card from your Graveyard to select 1 face up monster and reduce its Level by 1, until the End Phase. This effect cannot be activated the same turn this card is sent to the Graveyard.